kernel-packages team mailing list archive

[Chris J Arges <1366868@xxxxxxxxxxxxxxxxxx>]

This is a qemu issue, not a kernel issue. This works with qemu 2.1, and
not 2.0. Doing a bisect now.

** Also affects: qemu (Ubuntu)
   Importance: Undecided
       Status: New

** No longer affects: linux (Ubuntu)

** Changed in: qemu (Ubuntu)
       Status: New => Fix Released

** No longer affects: linux (Ubuntu Trusty)

** Changed in: qemu (Ubuntu Trusty)
     Assignee: (unassigned) => Chris J Arges (arges)

** Changed in: qemu (Ubuntu Trusty)
       Status: New => In Progress

** Changed in: qemu (Ubuntu Trusty)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1366868

Title:
  kvm: dompmwakeup fails if domain becomes pmsuspended

Status in “qemu” package in Ubuntu:
  Fix Released
Status in “qemu” source package in Trusty:
  In Progress

Bug description:
  [Impact]

  When using KVM, if one suspends the VM using actual power suspending
  code, the guest cannot resume using 'virsh dompmwakeup'.

  [Test Case]

  1) Create a KVM VM and install Trusty using libvirt (although qemu alone will also exhibit this problem)
  2) Inside the vm run (as root): 'echo mem > /sys/power/state'
  3) From the hypervisor run 'virsh dompmwakeup <domain name>'
  4) The domain should resume

  So far I've noticed that on Utopic this works fine, while on Trusty
  this fails; a bisect is needed.

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